97278159 has 8 divisors (see below), whose sum is σ = 141495552. Its totient is φ = 58956440.

The previous prime is 97278149. The next prime is 97278163. The reversal of 97278159 is 95187279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97278159 - 2⁹ = 97277647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97278149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1473879 + ... + 1473944.

It is an arithmetic number, because the mean of its divisors is an integer number (17686944).

Almost surely, 2^97278159 is an apocalyptic number.

97278159 is a deficient number, since it is larger than the sum of its proper divisors (44217393).

97278159 is a wasteful number, since it uses less digits than its factorization.

97278159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947837.

The product of its digits is 317520, while the sum is 48.

The square root of 97278159 is about 9862.9690762975. The cubic root of 97278159 is about 459.9088650584.

The spelling of 97278159 in words is "ninety-seven million, two hundred seventy-eight thousand, one hundred fifty-nine".